212211133123331 has 16 divisors (see below), whose sum is σ = 219237927834240. Its totient is φ = 205276123077120.

The previous prime is 212211133123313. The next prime is 212211133123337. The reversal of 212211133123331 is 133321331112212.

It is a cyclic number.

It is not a de Polignac number, because 212211133123331 - 2²² = 212211128929027 is a prime.

It is a super-2 number, since 2×212211133123331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212211133123294 and 212211133123303.

It is not an unprimeable number, because it can be changed into a prime (212211133123337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18130091 + ... + 27443076.

It is an arithmetic number, because the mean of its divisors is an integer number (13702370489640).

Almost surely, 2^{212211133123331} is an apocalyptic number.

212211133123331 is a deficient number, since it is larger than the sum of its proper divisors (7026794710909).

212211133123331 is a wasteful number, since it uses less digits than its factorization.

212211133123331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45574174.

The product of its digits is 3888, while the sum is 29.

Adding to 212211133123331 its reverse (133321331112212), we get a palindrome (345532464235543).

The spelling of 212211133123331 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred thirty-three million, one hundred twenty-three thousand, three hundred thirty-one".